<template>
  <div class="product-detail">
   <!-- 头部区域 -->
    <header class="detail-nav">
      <i class="iconfont icon-left" @click="goBack"></i>
      <div class="nav-list">
        <span :class="{'active':navIndex===0}" data-type="product" @click="scrollToView">
          <i class="iconfont icon-location iconfont-didian1" v-show="navIndex===0"></i>商品
        </span>
        <span :class="{'active':navIndex===1}" data-type="detail" @click="scrollToView">
          <i class="iconfont icon-location iconfont-didian1" v-show="navIndex===1"></i>商品详情
        </span>
        <span :class="{'active':navIndex===2}" data-type="recommend" @click="scrollToView">
          <i class="iconfont icon-location iconfont-didian1" v-show="navIndex===2"></i>商品推荐
        </span>
      </div>
      <i class="iconfont iconfont-gengduo-hengxiang"></i>
    </header>
    <!-- 轮播图 -->
    <section class="product-focus">
      <van-swipe
        :autoplay="3000"
        indicator-color="white"
        class="swiper-container"
      >
        <van-swipe-item v-for="(item, index) in sliderImageList" :key="index">
          <img :src="item.imgUrl" class="swiper_img" alt="" />
        </van-swipe-item>
      </van-swipe>
    </section>
    <!-- 详情信息 -->
    <section class="detail-info">
      <p class="detail-info-name">{{productDetail.name}}</p>
      <p class="detail-info-subtitle">{{productDetail.subtitle}}</p>
      <div>
        <span class="detail-info-price">￥{{productDetail.price}}</span>
        <span class="detail-info-stock">库存{{productDetail.stock}}件</span>
      </div>
    </section>
    <!-- 商品详情 -->
    <section class="detail-content" ref="detailContent" id="content">
      <p class="detail-gap"></p>
      <ul>
        <li>概述</li>
        <li>参数</li>
        <li>安装服务</li>
        <li>常见问题</li>
      </ul>
      <div id="exp">
        <div v-html="productDetail.detail"></div>
      </div>
    </section>
    <!-- 底部导航 -->
    <van-goods-action>
      <van-goods-action-icon icon="chat-o" text="客服" dot @click="onClickIcon" />
      <van-goods-action-icon icon="cart-o" text="购物车" badge="" @click="onClickIcon" />
      <van-goods-action-icon icon="shop-o" text="店铺" badge="" @click="onClickIcon" />
      <van-goods-action-button type="warning" text="加入购物车" @click="onClickButton" />
      <van-goods-action-button type="danger" text="立即购买" @click="onClickButton" />
    </van-goods-action>

    <van-sku
      v-model="show"
      :sku="sku"
      :goods="goods"
      :goods-id="goodsId"
      :hide-stock="sku.hide_stock"
      :message-config="messageConfig"
      @buy-clicked="onBuyClicked"
      @add-cart="onAddCartClicked"
    />
  </div>
</template>





<script>
import Vue from 'vue'
import { GoodsAction, GoodsActionIcon, GoodsActionButton } from 'vant';

Vue.use(GoodsAction);
Vue.use(GoodsActionButton);
Vue.use(GoodsActionIcon);
import { Sku } from 'vant';
Vue.use(Sku)
const {getProcuctDetail} = require('../../http/index.js')
export default {
  data() {
    return {
      id: this.$route.params.id,
      navIndex: 0, //导航索引
      productDetail: {}, // 保存详情数据
      sliderImageList: [], // 保存轮播图数据
      show: false,
      goodsId:null,
      sku: {
        tree: [
          {
            k: "颜色", // skuKeyName：规格类目名称
            v: [
              {
                id: "001", // skuValueId：规格值 id
                name: "红色", // skuValueName：规格值名称
                imgUrl:
                  "http://img.happymmall.com/570186f3-c0d2-4336-a1b7-3e1aff88f73a.jpg", // 规格类目图片，只有第一个规格类目可以定义图片
                previewImgUrl:
                  "http://img.happymmall.com/570186f3-c0d2-4336-a1b7-3e1aff88f73a.jpg", // 用于预览显示的规格类目图片
              },
              {
                id: "002",
                name: "蓝色",
                imgUrl:
                  "http://img.happymmall.com/a73b6326-1204-4937-aa88-097c9eda8a2a.jpg",
                previewImgUrl:
                  "http://img.happymmall.com/a73b6326-1204-4937-aa88-097c9eda8a2a.jpg",
              },
            ],
            k_s: "s1", // skuKeyStr：sku 组合列表（下方 list）中当前类目对应的 key 值，value 值会是从属于当前类目的一个规格值 id
          },
        ],
        list: [
          {
            id: 2259, // skuId，下单时后端需要
            price: 100, // 价格（单位分）
            s1: "001", // 规格类目 k_s 为 s1 的对应规格值 id
            stock_num: 50, // 当前 sku 组合对应的库存
          },
          {
            id: 2259, // skuId，下单时后端需要
            price: 100, // 价格（单位分）
            s1: "002", // 规格类目 k_s 为 s1 的对应规格值 id
            stock_num: 50, // 当前 sku 组合对应的库存
          },
        ],
        price: "100", // 默认价格（单位元）
        stock_num: 100, // 商品总库存
        collection_id: 2261, // 无规格商品 skuId 取 collection_id，否则取所选 sku 组合对应的 id
        none_sku: false, // 是否无规格商品
      },
      goods: {
        // 商品标题
        title: "测试商品",
        // 默认商品 sku 缩略图
        picture:
          "http://img.happymmall.com/570186f3-c0d2-4336-a1b7-3e1aff88f73a.jpg",
      },
      messageConfig: {
        // 图片上传回调，需要返回一个promise，promise正确执行的结果需要是一个图片url
        uploadImg: () => {
          return new Promise((resolve) => {
            setTimeout(() => resolve('https://img01.yzcdn.cn/upload_files/2017/02/21/FjKTOxjVgnUuPmHJRdunvYky9OHP.jpg!100x100.jpg'), 1000);
          });
        },
        // 可选项，自定义图片上传逻辑，使用此选项时，会禁用原生图片选择
        customUpload: () => {
          return new Promise((resolve) => {
            setTimeout(() => {
              resolve('https://img01.yzcdn.cn/vant/leaf.jpg');
            }, 1000);
          });
        },
        // 最大上传体积 (MB)
        uploadMaxSize: 3,
        // placeholder 配置
        placeholderMap: {
          text: 'xxx',
          tel: 'xxx',
        },
        // 初始留言信息
        // 键：留言 name
        // 值：留言内容
        initialMessages: {
          留言: '留言信息'
        }
      }
    }
  },
  created() {
    this.fetchProductDetail();
  },
  methods: {
    goBack() {
      this.$router.go(-1);
    },
    scrollToView(e) {
      let $type = e.target.getAttribute("data-type");
      //console.log($type);
      switch ($type) {
        case "product":
          this.navIndex = 0;
          break;
        case "detail":
          this.navIndex = 1;
          break;
        case "recommend":
          this.navIndex = 2;
          break;
      }
    },
    fetchProductDetail() {
      const params = {
        id: this.id-0+1,
      };
      getProcuctDetail(params).then(res => {
        this.productDetail = res;
        let subImages = res.subImages.split(",");
        let imageHost = res.imageHost;
        subImages.forEach((item) => {
          this.sliderImageList.push({
            imgUrl: imageHost + item,
          });
        });
      });
    },
    onBuyClicked() {
      //console.log("onBuyClicked");
    },
    onAddCartClicked() {
      //console.log("onAddCartClicked");
    },
    addToCar() {
      this.show = true;
    },onClickIcon() {
      //console.log('点击图标');
    },
    onClickButton() {
      this.show = true;
    },
  },
  updated:function(){
    //   因为获取到的是html，还加上了内嵌宽高，所以在这里手动修改一下图片的宽高
      let exp=document.querySelector('#exp');
      let imgs=document.querySelectorAll('#exp img');
      imgs.forEach(item=>{
          item.setAttribute('width',exp.clientWidth+'px')
          item.removeAttribute('height');
      })
  }
};
</script>
<style lang="scss" scoped>
@import "../../common/style/mixin.scss";

.product-detail {
  width: 100%;
  .detail-nav {
    @include fj;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 88px;
    padding: 0 20px;
    line-height: 88px;
    box-sizing: border-box;
    z-index: 1000;
    color: #252525;
    background: #fff;
    border-bottom: 1px solid #dcdcdc;

    i {
      font-size: 50px;
      color: #000;
    }

    div span {
      padding: 0 20px;
      font-size: 28px;

      &.active {
        color: $red;
      }

      .iconfont {
        padding-right: 8px;
        font-size: 28px;
        color: $red;
      }
    }
  }
}
.product-focus {
  margin-top: 88px;

  .swiper-container {
    .swiper_img {
      width: 100%;
      height: 700px;
    }
  }
}
.detail-info {
  width: 100%;
  padding: 20px 30px;
  font-size: 30px;
  box-sizing: border-box;

  .detail-info-name {
    font-size: 40px;
    color: #333;
  }

  .detail-info-subtitle {
    padding: 10px 0;
    font-size: 28px;
    color: #999;
  }

  div {
    @include fj;
    height: 70px;
    line-height: 80px;
    padding: 10px 0;
    font-size: 32px;
    color: #999;

    .detail-info-price {
      color: $red;
      font-size: 44px;
    }
  }
}
.detail-content {
  width: 100%;

  .detail-gap {
    width: 100%;
    height: 20px;
    background: #eee;
  }

  ul {
    @include fj;
    width: 100%;
    margin: 20px 0;

    li {
      flex: 1;
      padding: 10px 0;
      text-align: center;
      font-size: 30px;
      border-right: 1px solid #999;
      box-sizing: border-box;

      &:last-child {
        border-right: none;
      }
    }
  }

  div {
    width: 100%;
    overflow: hidden;

    p {
      width: 100%;
      font-size: 40px;
      text-align: center;
    }

    img {
      width: 100%;
      height: 100%;
    }
  }
}
</style>